Noun. 1. synergy-the working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects. synergism.
Cayenne pepper cranks the sauce up to 800 Scoville units of heat compared to Taco Bell's Fire Sauce at 500 Scoville units, which makes this the hottest stuff you can get at the chain. Now, with this secret formula, you can adjust the heat up or down to your preference just by playing with the amount of cayenne you add.
The Scoville scale is a measure of the hotness of a chili pepper. These fruits of the Capsicum genus contain capsaicin, a chemical compound which stimulates thermoreceptor nerve endings in the skin, especially the mucus membranes, and the number of Scoville Heat Units (SHU) indicates the amount of capsaicin present.